Vol. 52 No. 1/2018: Measuring impact
On average, 400,000 US dollars and a period of three years is needed to measure the effect of a development intervention, the International Initiative for Impact Evaluation concludes from its activities. These are valuable resources that need to be used carefully. Our authors describe which impact measurement methods have proved to be useful during the last few years and what their strengths and their limits are. And they demonstrate when impact evaluations make sense – and when they don’t.
